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The original corporation was founded in Bridgeport, Connecticut, and started selling its machines in 1938.It became known in the following decades for small and medium-sized vertical milling machines, with a form of quill equipped multiple-speed vertical milling head with a ram-on-turret mounting over a knee-and-column base.
The American Precision Museum's biography of Rudolph Bannow [2] reports that he conceived the iconic Bridgeport ram-and-turret, knee-and-column design in 1936 as the logical machine on which to mount the milling head already being built by the company. In 1938 they began selling whole milling machines.
A 3-axis clone of a Bridgeport-style vertical milling machine. Milling is the process of machining using rotary cutters to remove material [1] by advancing a cutter into a workpiece. This may be done by varying directions [2] on one or several axes, cutter head speed, and pressure. [3]
Patent 1794361 (filed 25 March 1927) describes milling machine spindle and tool shapes using a steep taper. [11] The patent was assigned to Kearney & Trecker Corporation, Brown & Sharpe, and Cincinnati Milling Machine Company. The patent wanted a taper that would freely release the tool and found that a taper of 3.5 in 12 had that property. [12]
The firm was founded in 1894 by Edward Payson Bullard Sr. (born April 18, 1841, in Uxbridge, Massachusetts, US; died December 22, 1906, in Bridgeport, Connecticut, US [3]). He received formative experience at the Colt armory and Pratt & Whitney, [3] which were influential development centers for generations of toolmakers. [4]
Bridgeport Machines, Inc., a milling machine manufacturer, was founded in Bridgeport in 1938, as well as Hubbell Incorporated in the 1890s, these are two examples, various companies were headquartered in Bridgeport, such as Warnerco, ACME Shear, Westinghouse subsidiary Bryant Electric among others, and others such as Remington Arms, General ...
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